In this post you will find the same One Dream Coins pictures as published previously just in different format: gif. I think pictures in gif format are more suitable for web. Also, all pictures have transparent background. It is better option for web design purpose. As usually, this work is released under public domain dedication license. So, you can use all pictures as it is or modify them for your purpose.
To past picture in your web page: right click mouse; select copy image URL: past it on your webpage in HTML view. There are other ways to do the same. If you have any questions email to firstname.lastname@example.org
September 17, 2012 update:
I just noticed that if you try to save pictures from this blogpost it load them in png format. I don't know what is the problem here. I added links (under each picture) to the same (original source in gif) pictures on my picasa.
Below is a link of spinning coin in gif format. For some reason it shows on black background though I made it transparent?! I added it here just to see if I can use it some how.